I've got this version. https://www.amazon.com/Blade-Runner-Four-Disc-Collectors-Harrison/dp/B000UBMSB8/ref=sr_1_1?ie=UTF8&qid=1545323394&sr=8-1&keywords=bladerunner+4+disc

You could probably find it cheaper on Ebay.

It has the original cut with voice over

Final Cut

& Director Cut.

And like 4 or 5 hours of documentary and special features that are pretty awesome.
Drawback is it is older so It isn't HD.

This edition includes the theatrical cut

Twice. Once with the Four Disk Collector's Edition on DVD, which included most of the stuff from the briefcase edition. When the 30th Anniversary Edition came out on Blu-Ray, I upgraded.